Lock



March 13, 1928.

W. E. BARTMESS LOCK Filed Dots?. 1926 2 Sheets-Sheet 1 March 13, 1928.

W. E. BARTMESS LOCK Filed 061.7, 1926 2 Sheets-Sheet 2 automa,

Patented Mar. V13, 1928 PATENT* OFFICE,

WILLIAM E. BARTMESS, OF KENWOODQOKLAHOMA.

LOCK.

Application led October 7, 1926.

,n This invention relates to locks, and has more particular reference to a padlock of generally simplified and improved construction, The primary object of the presentinvention is tov provide a padlock wherein simple and effective means is provided for releas ably securing or retaining the shackle of the lock in locking position.

Amore specific object of the inventionis to provide an improved form of padlock including a pivoted shackle, and simple and effective means for releasably retaining the bow or shackle in locked lposition including manually rotatable tumbler disks capable of being` set for permitting movement of the bow or shackle to unlocked or open position.

Another object of the invention is to provide a padlock of the above type which is susceptible of slight structural changes to vary the operating combination, to prevent duplication of the locks.

A further object of the invention is to provide a padlock of the above kind wherein simple means is provided for facilitating manual rotation and setting of the tumbler disks for effecting release of the bow `or shackle in an expeditious manner by an authorized person, while at the same time 30 presenting a construction wherein it will be extremely diflicult for an unauthorized person to effect release` of the bow or shackle.

Other' objects will become apparent as the nature of the invention is better understood, and the same consists in the novel form, coinbination and arrangement of parts hereinafter more fully described, shown in the accoi'upanying drawings and claimed.

In the drawings, wherein like reference characters indicate corresponding. parts throughout the several views,

Figure l is a side elevational view of a padlock constructed in accordance with the present invention, with the bow or shackle in locked position,

Figure 2 is a. view of the padlock shown in Figure l with one of the sections of the padlock casing removed and pivots and fastening elements in section, the tumbler disks being shown in locking position;

Figure 3 is an edge elevational view looking toward the left of Figure 1,

Figure 4 a perspective View of one of the tumbler disks;

Figure 5 is an enlarged fragmentary perspective View showing an end portion of an ently become apparent.

kSerial No. 140,170.

arm which. is operatively connected to the bow or shackle and operatively associated with the tumbler disks for releasably retaining the bow or shackle in locked position. i

Figure 6 is a view similar to Figure 2 With the tumbler disks shifted to releasing position and the bow or shackle in its released position, y p f Figure 7 is a central sectional view taken substantially upon line 7 7 of Figure l, f f Figure 8 is a sectional View taken upon line 8-8 of Figure l, y y

F igure` 9 is an inside elevational view ofone of the sections of the lock casing,

Figure l0y is a perspective of a device which may be provided for association with the casing of the padlock to facilitate setting of the tumbler disks for the release of the bow or shackle, and

Figure llis an elevational view illustrating the manner in which the device of Figure l0 is applied to the padlock when used for facilitating unlocking of the shackle, the padlock being illustrated on a. reduced scale by dotted lines to correspond with the reduced scale upon which the device of Figure l0 is shown in this iigure. Y

Referring more in detail to the drawings, the embodiment of the invention illustrated consists in a padlock having a casing com-k posed of a pair of somewhat similar seotions 5 and 6 rigidly and permanently secured together in side by side contiguous relationby suitablemea-ns such as rivets 7 passing through the casing sections at suitable spaced points: near the edges of the casing sections. The sections 5 and 6"of the lock casing are provided in their adjacent sides or surfaces with mating relatively large and circular recesses 8 which cooperate to form a circular chamber in thelock casing within which are rotatably fitted a plurality of tumbler disks` 9. As shown, a pair of the ,disks 9 is provided in thel recess of each casing section, and one pair of tumbler disks is spaced from the other pair as shown recaen in Figure 7 for a purpose which will presi The tumbler disks 9 are preferably rotatable about a fixed axial pivot inthe form of a rivetYl() which also aids in retaining the casing sections to` gether. Rigid with and projecting outwardly from the edge of each tumbler disk 9 is an arm l1 terminating in a lateral outer or free end portion l2 which is tapered So as to form a pointer. Asshown, the arms` 1l of one pair of tumbler disks Q'are arranged to freely move within an elongated arcuate slot which opens through one side of one section of the lock using, while the arms 1l of the other pair of tumbler disks are movable in an elongated arcuate slot-iii the opposite side ot the other section ot the lock easing. 'lhe slot aty one side edge ot' the lock casing is formed b v recessing one of the casing sections near one side as indicated at 13 in Figure S and Sl. whih` the other slot of the lock casing is formed by similarly recessing the other casing sectioned at the opposite side of the latter as indicated at 1st. As clearly shown in the several views. the side edge portions ot the lock casing coincident with the slots through which the armsI 11 project are of arcuate form and concentric with the pivot. l() ot the tumbler disk. and the lateral outer ends ol' the arms l1 are arranged to move beside these arcuate edges which are suitably grad uated as indicated at. 15. Thus. when the casing sections are assembled. the sides ot: the lock will be tormed to provide slots through which the arms ot'v the tiunbler disks may be actuated, while the lower side of the lock casing will be closed. for a purpose which will later appear. Referring to Figure 3 it will be seen that graduations are provided at each edge ory along each longitudinal edge of each slot through which the arms 1l project, and the lateral ends of adjacent pairs ot arms 11 are directed in opposite directions so as to respectively cooperate with the graduations at opposite sides of the slots.

Each tumbler disk 9 is providedwith a radial or substantially radial slot 1G which opens through the peripherj7 o the tumbler disk, and these slots 16 are so located with relation to the arms 11, that the arms 11 ot one pair of disks must be set in different positions at one side of the lock casing, and the arms 11 of the other pair of disks must be sety at` different positions at the other side of the lock casing in order to bring the slots 16 of all of the tumbler disks into alignment; or registration beneath the pivot 1t). As previously noted, the lower closed portion of the lock will prevent unauthorized persons observing the position of the radial slots in the disks which would enable them to adjust the dis ts to effect, release of the shackle.

A bow or shackle 1.7 is pivotcd atI one end upon one ot the upper rivets 7 adjacent one side edge ol' the lock casing so as to be capable ot swinging movement from closed to open position and vice versa, the casing having ay socket in the upper end thereot1 adapted for reception of the other or free end of the bow or shackle when the latter' in locked or closed position. This socket formed by the provision of a pair of mating recesses 18 in the adjacent faces of the casing sections, and the pivoted end ofthe bow or shackle is disposed in a recess provided in the inner face of one of the casing sections as indicated at 19in Figure 2. whereby such end of the bow or shackle is free to be swung and positioned between the casing sections.

Rigid with and projecting inwardly from the pivoted end of the bow or shackle 17 is an arm 20 which extends into the .space between the pairs of tumbler disks and tcrniinales at its inner end at' a point above the pivot pin ot' the tumbler disks. A detent arm 2l is also disposed between the pairs of tulnbler disks and is pivot ally attached at its upper end to thc inner end of the arm .Ztl as indicated at :22, said detent arm ll being of a length to extend past the pivot pin to the lower edges ot the tumbler disks where it is provided at its lower :tree end with a transverse head 23. The. head Q3 rigid with the detent arm 21 and is positioned in engagement with the edges of the tumbler disks at the lower side ot the lock casing when the shackle 1T is in closed or locked position, the head .225 heilig ol` such length as to extend beyond opposite sides ofi the detent arm and entirely across the edges of all of the tumbler disks as clearly shown in Figure 7. It is thus evident that when the parts are disposed as shown in Figure with the tumbler disks 19 variously positioned with their slots 16 out of' registry. the head 2? by engagement with the disks, will prevent upward movement of the arm .20 and will accordingly retain the bow or shackle 1T in closed position. at which time the padlock is in a locked condition.

However. by properly setting the pointers 1Q of the respective arms 1l ot' the tumbler disks with relation to the graduations l5 on the lock casing7 the tumbler disks 9 will be partially1 rotated until brought to a position wherein the slots 16 of all the tumbler disks are registered beneath the pivot pin and coincident` with the head 23 of the detent arm 21. Obviously. when the tumbler disks arc thus jmsitioned with all ot the slots lt registered. the. head .23 will be tree to move upwardly in the slots 1G toward the pivot pin. thereby permitting the arms Q() and 21 to rise and allowing the bow or shackle lT to be swung to the open position indicated in Figure (i. Naturally. one, familiar with the proper setting ot the pointers lf2 may readily set the tumbler disks for effecting release of the shacklet while one not familiar with the same will have conside able diiliculty in doing so.

As disclosed in Figures 1() and 1l, in lieu of the use of the graduations 15. a device may be provided for application to the lock casing for facilitating proper positioning of the pointers 12 wherein the tumbler disks are setv with their slots 1G registered to permit opening or unlocking of the bow or llo lill) shackle 17. This device preferably consists of a flat plate 24 adapted to be flatly disposed against one side of the lock casing and having a pair ot' laterally extending lugs 25 upon each end thereof disposed to extend across the `respective slots in which the tumbler disk arms 11 are movable and so spaced that when the arms 11 are set with one of the same contacting the inner edge of each of the lugs 25, the discs 9 will be positioned with their slots 16 registered as shown in Figure 6. The plate. 24 is preferably provided with curved end flanges 26 adapted to snugly engage the arcuate side edge portions of the lock casing when applied, as shown in Figure 11, whereby the device is firmly retained properly positioned, except for the requirement of manually holding the plate 24 into contact with the surface of the lock casing. The lugs 25 preferably project from the ends of the flanges 26 as shown, and in order to permit the plate 24 to flatly engage the lock casing, the same is provided with :i central opening as at 27, into which the adjacent head of the rivet or pivot pin 10 may project. bviously, the distance at which the lugs 25 of each pair are spaced apart will be entirely governed by the relation of the arms 11 to the slots 16 of' the tumbler disks and the corresponding relative positions at which Athe arms 11 must be set for effecting registering of the slots 16 of the tumbler disks. Obviously, the device of Figure 10 may be quickly applied to the padlock as indicated in Figure 11 and the pointers can be quickly set so that the unlocking ot the shackle may be effected in an expeditious manner. It is simply necessary to know which pointers are to engage with the uppermost lugs, and as shown, t-he inner disk of each pair is the one the arm of which to be swung upwardly to engage the uppermost lug 25 at each side of the lock casing.

In the embodiment of the invention illustrated, it will be readily apparent that the radial slots 16 in the tumbler disks may be formed inV a variety of posit-ions with respect to the arms 11 of the disks. It is conteniplated to prevent duplication, of the unlocking combination to vary the position of the radial slot of at least one tumbler disk, so that a great number of combinations may be produced. As an example, it will be noted that the slot in each disk of the series may be so formed as to be positioned at many different angles, and as there are four distinct disks the number of combinations which locks of this type may possess will be sufiicient to prevent duplication. Furthermore, it is contemplated to produce padlocks of this general structural form embodying from two to six or more tumbler disks. The cheaper locks employing only two disks would not be susceptible of as great a range of relative arrangement of the slots therein as would locks having a greater number of' disks, but would never-` theless be susceptible of varied combinations. The number of combinations'might also be increased by increasing the diameters of the disks, it being readily apparent that disks ot larger diameter would permit the formation of a greater number of slots so asto present a relatively greater number of different combinations. i Y

From the foregoing description it is believed that the construction and operation as well as the` advantages ot the present invention will be;l readily understood and appreciated by those skilled in the art. Y

Minor changes may be made without departing from the spirit and scope of the invention as claimed.

Vhat I claim as new is 1. A lock comprising a casing including assembled relatively fixed sections, a shackle carried by the casing and movable to locking and released positions, a plurality of slotted disks arranged in the casing and rotatable to relative positions with their slots in registry at a predetermined point and to other relative position with their slots o ut ofl registry, manually operable means for adjusting said tumbler disks, and a member operatively pivotally connected to an angular extension of the shackle and extending substantially diametrically ofl the disks and restrained from movement by the tumbler disks when the latter are relatively positioned with theirr slots out of registry for restraining the shackle in locked position.` said member being movable into the slots of the tumbler disks when the latter are positioned with their slots in registry for permitting movement of the shackle to released position, said casing having circumferential slots in its periphery, and said manually operable means embodying arms rigid with the tumbler disks and projecting outwardly through and movable in said slots.

A lock comprising a casing including assembled relatively fixed sections, a shackle carried by the casing and movable to locking and released positions, a plurality of' slotted tumbler disks arranged in the casing and rotatable to relative positions with their slots in registry at a predetermined point land to other relative positions with their slots .out of registry, manually operable means for adjusting said tumbler disks, a detent member pivotally connected with an angular extension of the shackle and restrained from movement by the tumbler disks when the lat-tei' are relatively positioned with their slots out of registry for restraining the shackle in locking position, said detent member being movable into the slots of the tumbler disks when the latter are positioned with their slots in registry for permitting movement oi the shackle to released position,

.said easingihaving eireumferential Slots in its periphery, said n'1anually operahle means embodying arms rigid with the tumhler disks and projecting outwardly through and movable in said slots, and means applieahle to the easing and having elements in the path ot' movement ot said arms i'or l'arilitatiner proper :setting ot the tumhler disks; tor release ot the loeking elements.

l. A loek eomprising a easing ineluding assemhled relatively lixed ieetious. a shaekle rarried hy the easing and inovahle to loeking and rel `ased position. a plurality oi slotted tumhler disks arranged in the easing and ro tatahle to relative positions with their slots in regiatrj at a pre1letermined point :1nd to other relative positions with their slots out of registry. manually operahle means for ad* justing said tumhler disks. 11 detent memher pivotally eonneeted with an angular exten* Sion ot' the shaekle and restrained from movement h v the tumhler disks when the latter are relatively positioned with their slots out of registry tor restraining the :shaekle in lot-king position. said lnenlher having a head engageahle and movahle in the slots of the tumhler diskswhen the latter are positioned with their slots in registry t'or permitting movement ol` the shaekle to rel `ased position. said easing having eireumterential slots in its periphery. .si id manually ope 'ahle means einhodying arms rigid with the tumhler disks and prrjijeeting out'i wardly through and movalile in said slots. and means tor determining the adjustment ot' said arms to hriug the disks into position with their slots in registration. said last named 1n `aus eomprisingr a plate removably applieahle to the easing and having lateral lugs arranged to constitute stopft for the arms ot the tumhler disks.

1t. A padloek ineluding a easing. a shackle earried hy the easing and movahle to loeking;` and releasred positions. a plurality ot slotted tumhler disks rotatahly mounted in the 'asing and adjustahle to relative positions with their slotsl out ol registry and to other relative positions with their slots in registry at' a predetermined point. and :1 member eouneeted to the shaekle and provided witl :1 head engageahle with the periijiherieaA oi. the disks` and restrained trom movement hy the disks when any one of the latter is positioned with its .slotl removed trom sueh predetermined point lfor securing the shackle in lockingr position. said head l.1eing movable into the Slots ot the tumbler disks when all ot the latter are positioned with their slots" in registry for permitting movement of the shackle to released position, said easing haring elongated slots in the side edges thereof. and arms rigid with thi` tum lili-r disks and projecting outwardly through said slots of the easing tor heing manually operated to set the tumhler disks.

A padloek ineluding a easing. a shaekle having one leg pivoted in the easing and movahle to locking and released positions, a plurality ol slotted tumbler disks rotatably mounted in the easing and movahle to relative positions with their slots' out ot registry and to other relative positions with their slots in registry at a predetermined point. the said leg of the shackle having an angular extension within the basing. and a member eonneeted to the said arm and having a transverse head engageahle with the periph eries of" the disks and restrained Vl'rom movemeut hy sueh engagement when any one of' the disks is positioned with its slot removed from sueh pre1letermiued point for restrai11- ing the shaekle in looking position. said head heiug movable into the slota ot the tumbler disks when all ot the latter are positioned with their slots in registry 'for permitting movement of the shackle to released position. said :as-ing having eireumterential .slots in the periphery thereof. and arma rigid with the tumhler disks and projeeting outwardly through said slots and manually adjusrtahle to adjust,v the tumhler disks, the periphery of the easing at the opposite sides thereof heing curved ernieentrie with the axif= ol rotation of the tumhler disks and having graduatious along the sides of said slots'. and lateral pointers on the outer ends ot said arms of the tumhler disks mo'ahle along the side portions of the easing and pastI said graduationS.

In testin'iony whereof I atiix my signature.

TILTJAM I". BR'IMESS.

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